Answers to End-of-Chapter Questions - chapter 4
1. a.
b.
c.
d.
e.
Less, because your wealth has declined;
more, because its relative expected return has risen;
less, because it has become less liquid
Problems Set 4
EF5470: Econometrics, Semester A 2013/2014
Due on Oct. 11. 2013
1. Question 7 on page 46 in Hayashi.
2. Suppose we have derived its part (a), solve parts (b) and (c) of Question 5 on pa
Problems Set 3
EF5470: Econometrics, Semester A 2013/2014
Due on Oct. 4. 2013
1. Let denote an n 1 vector with all entries equal to 1. Dene P = ( )1 . Let y be an
n 1 vector and dene M = In P .
(a) Wh
Problems Set 1
EF5470: Econometrics, Semester A 2013/2014
Due on Sep. 13. 2012
2
1 0
0.5
1
2
1. Consider two matrices A = 0 1 2 and B = 2 1 2.5 .
2 2 1
0.5 3
1
(a) Compute B , A + B, and T r(A B).
(
13-240 - Spring 2013 l
Problem 1 (40 points)
Consider an economy with a corn producer, some consumers, and a government. In a given year,
the corn producer grows 30 million bushels ot corn and the mar
Lecture Notes in Econometrics
Fred Y Kwan
This version: 7 October 2015
Heteroskedasticity and Autocorrelation
1. Mean, variance and covariance for random vector
Random vector:
x = [ x1
x2 . xk ] '
Mea
Multivariable Chain Rule
September 13, 2016
1. The chain rule allows us to differentiate complicated functions. Consider differentiable functions
Rn R
g 1 : X Rn R
g 2 : X Rn R
f :X
.
.
gm : X
Rn R.
A Note on Cobb-Douglas Technology
EF5471 & EF8070. Advanced Microeconomics
September 6, 2016
A production function f :
R2+ R+ of the form
f (L, K) = AL K
A, , > 0
(1)
is referred to as Cobb-Douglas p
About the midterm exam for EF5470 (Econometrics)
1. The midterm exam will be held in October 30 (Sun), 10:00 12:50, LT-17 AC 1.
2. It will be an open-book exam you are free to bring any books, lecture
EF5472/EF8072 Advanced Macroeconomics
City University of Hong Kong, Semester A, 2016-17
Instructor: Dr. LUO, Guannan
E-mail: [email protected]
Office Hours: Fridays 2-3:50PM or by appointment Offi
EF5472/EF8072 Advanced Macroeconomics
Semester A, 2016-2017
Problem Set Two
Due Date: Noon, Friday, October 28 (Please Submit your Answers to
Shan AC2 5012, email: [email protected])
This pro
Problem Set 1
EF5471 & EF8070. Advanced Microeconomics
due September 12, 2016 (in class)
1. (a) The inequality
mincfw_a + b, c + d mincfw_a, c + mincfw_b, d
(1)
holds for any real numbers a, b, c, and
Problem Set 3
EF5471 & EF8070. Advanced Microeconomics
due September 26, 2016 (in class)
1. Consider a competitive firm with production function
f (L, K) = L + K (L, K)
R2+
where L and K stand for th
Problem Set 2
EF5471 & EF8070. Advanced Microeconomics
due September 19, 2016 (in class)
1. Consider a competitive firm with production function
f (L, K) = L + K (L, K)
R2+
where L and K stand for th
Answers to End-of-Chapter Questions Chapter 2
2. Yes, I should take out the loan, because I will be better off as a result of doing so. My
interest payment will be $4,500 (90% of $5,000), but as a res
Answers to End-of-Chapter Questions Chapter 1
1. Because they channel funds from those who do not have a productive use for them to those who do,
thereby resulting in higher economic efficiency.
2. Bu
Answers to End-of-Chapters Questions
4. True, as an approximation. If large changes in a stock price could be predicted, then the optimal
forecast of the stock return would not equal the equilibrium r
Problems Set 5
EF5470: Econometrics, Semester A 2013/2014
Due on Oct. 18. 2013
1. Use the Law of Large Number to answer the following questions.
(a) If X 2 (n), show that X/n p 1 by LLN (hint: use the